I'm stuck at "waiting for you..." How do I get past step 2?

Is this your situation? You're stuck at the "waiting for you..."
step 2 of http://twinesetup.com, even though
you've:

disconnected all network cables and other network
connections

stayed connected to the \||| Twine wireless access point

If you have manually entered DNS servers (such as Google Public
DNS), temporarily disable them during setup. This disrupts your
browser's ability to recognize that it's connected to your Twine's
network.

If that isn't your situation, here's a workaround so you can get
your Twine up and running in the meantime. While you're
connected to the \||| Twine access point, follow these
steps: